Structure of Enzyme Discovered that Converts Ribonucleotides into Deoxyribonucleotides

Researchers have uncovered the structure of an enzyme that is crucial for maintaining an adequate supply of deoxyribonucleotides in human cells. Their new structure also reveals the likely mechanism for how cells regulate the enzyme—ribonucleotide reductase (RNR). Interestingly, the mechanism appears to differ from that of the bacterial version of the enzyme, suggesting that it could be possible to design antibiotics that selectively block the bacterial enzyme."People have been trying